The Oceanscience Group

The Oceanscience Group is a leader in development of oceanographic and hydrologic deployment equipment. Our major marine products are the UnderwayCTD and UnderwaySV systems, as well as our Sea Spider and Barnacle seafloor platforms. In addition, we manufacture remotely-controlled and tethered instrumentation deployment boats for in-shore survey and Doppler profilers.

Acoustics | Beacons & Buoys | Conductivity Meters | Hydrological Instruments | Instruments / Instrumentation | Profiling Systems | Radio Equipment | ROVs | Sensors | Telemetry Equipment | Towed Arrays & Bodies | Winches & Accessories

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Title Barnacle - Trawl Resistant Bottom Mount ADCP Frame Description The Oceanscience Barnacle 53 is for deployment in areas where trawling is a problem. The Barnacle's low profile and curved edges minimize the potential for disturbance. The Barnacle provides the strongest protection available for your Doppler profiler or other sensors. There are no corners or edges to snag. Externally inserted lead ballast makes the Barnacle easy to handle on deck and easy to deploy from any size boat. The optional canister gimbal insert houses the gimbaled instrument so that the entire assembly may be easily removed by a diver. All Oceanscience Seafloor platforms are easy to customize for special applications. The hand-laid heavy fiberglass construction provides immense strength and excellent resistance to corrosion. With 102lbs (46kg) of lead ballast weight, the Barnacle 53 weighs 167lbs (76kg). PDF Click here to download PDF Category Marine Equipment - General Submersible Equipment

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Title Custom Products - Custom Design and Manufacturing Description The Oceanscience Group designs and builds custom buoys for oceanographic, navigation and special purpose use. We design and build surface following buoys and spar buoys of virtually any size. Buoys up to 3 m diameter are typically constructed using urethane elastomer technology. This is the same technology used in large Navy-style ship fenders that are designed to absorb repeated collisions and abrasion over twenty years without sustaining damage. These buoys are virtually indestructible. The tough outer skin is filament wound with nylon tire cord for extreme strength. Colors are molded into the skin for low maintenance. A variety of aluminum tower and electronics box designs are available for specific power and instrumentation arrangements. Category Accessories, Components & Spare Parts Beacons & Buoys Marine Equipment - General

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Title Sea Spider - Acoustic Doppler Current Profiler Bottom Mount Frame Description The Oceanscience Sea Spider is used by major oceanographic institutions across the world. It is designed for deployment of ADCPs, transponders, cameras, pressure sensors, wave gauges, CTDs and virtually any other type of compact oceanographic instrumentation package. The Sea Spider can carry multiple instruments and a pop-up buoy for diverless recovery. Gimbals are available for deployment on uneven sea floors. The Sea Spider has lead ballast feet and corrosion-free plastic clamps to protect your instruments. A modular version is available to allow the Sea Spider to be shipped in a box rather than on a pallet. PDF Click here to download PDF Category Containers & Cases Fasteners Marine Equipment - General Submersible Equipment

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Title UnderwayCTD - Profiling from a Moving Vessel Description The Oceanscience UnderwayCTD provides research grade CTD (conductivity, temperature, and depth) profiles while underway at up to 20kts. The unique freefall profiler offers researchers vertical profiles even as the ship is moving away from the deployment location. The innovative deployment winch and re-spooling mechanism allows the probe to be recovered and re-launched time after time without ever needing to stop or slow down. Profiles are gathered quickly, allowing excellent spatial resolution for CTD transects. The UnderwayCTD can be installed on practically any vessel. The small footprint winch can be mounted on a post or rail, and can be set up and operated by one person. The UnderwayCTD components can be transported from ship to ship with ease, making the system ideal for gathering high quality data from vessels of opportunity. PDF Click here to download PDF Category Conductivity Meters Cranes, Hoists & Winches Hydrological Instruments Pressure & Temperature Control Measurement Equipment Survey Equipment Winches & Accessories

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Title UnderwaySV - Sound Speed Profiling from a Moving Vessel Description The Oceanscience UnderwaySV offers vertical sound velocity (SV) profiles in minutes, without ever having to stop the survey vessel. The latest Valeport Ltd digital time-of-flight sound velocity measurement technology is combined with the innovative Oceanscience underway sensor deployment system developed for the UnderwayCTD. The result is a revolutionary tool for hydrographic surveying. Easy to use, portable, compact, and affordable, the Underway SV saves survey time and promotes a better understanding of sound speed variability for optimum survey results. State of the art wireless communication allows profiles to be downloaded to the survey computer automatically as soon as the probe emerges from the water behind the ship, with no operator involvement required. PDF Click here to download PDF Category Conductivity Meters Cranes, Hoists & Winches Hydrological Instruments Instruments / Instrumentation Marine Equipment - General Profiling Systems Sensors Survey Equipment Winches & Accessories

Title C&C Technologies Install UnderwaySV on High Specification Survey Vessel Description The UnderwaySV was installed on the R/V Thunder for a cable route survey off Alaska in July 2011. Local sound speed variability from freshwater runoff and surface heating could potentially wreak havoc on the wide swath multibeam data without adequate sound velocity (SV) profiles. To avoid survey downtime while gathering the required SV profiles, all casts were completed while underway using the innovative Oceanscience system. The small footprint winch system and simple installation procedure was ideal for the cramped deck. The Bluetooth wireless data management system made operations simple and efficient. The system also prevented the need to recover the sidescan towfish during SV casts. PDF Click here to download PDF Date Submitted 04 Jan 2012 Category Hydrological Instruments Marine Equipment - General Profiling Systems Survey Equipment Winches & Accessories Oceanography Oceanology Target Acquisition & Recognition

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Title Extensão da Plataforma Continental (EMEPC) Use UnderwayCTD for Eddy Survey Description The EMEPC group, based in Paço d’Arcos, near Lisbon (Portugal) conducted an extensive survey on and around the Selvagens Islands in the Atlantic Ocean in June 2010. In addition to habitat investigations using an ROV, an Oceanscience UnderwayCTD (UCTD) system was used to conduct a study of a synoptic scenario in the ocean close to the islands. During this survey, EMEPC scientists on board the N.R.P. Almirante Gago Coutinho were able to conduct the deepest UCTD cast recorded in the year 2010, to 942m at 5kts. PDF Click here to download PDF Date Submitted 04 Jan 2012 Category Marine Equipment - General Profiling Systems Survey Equipment Winches & Accessories

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Title Impact of Typhoons on the Ocean in the Pacific (ITOP) Project Uses UnderwayCTD to Sample the Cold Wake of a Typhoon Description In order to conduct a rapid-response upper ocean survey investigating the effect of a passing Typhoon in the Pacific Ocean, researchers from APL used the UnderwayCTD on a continuous basis during a 20 day cruise. This unique freefall profiler was the main instrument used to accomplish the October 2010 cruise goals, and was augmented by gliders, fixed CTD stations, and a Vertical Microstructure Profiler (VMP). Round-the-clock UnderwayCTD operations achieved a record-breaking 2,917 profiles. Dozens of transects were completed, mostly at about 10kts with a spatial resolution of only 1km. The UCTD allowed high quality underway CTD profiles to be gathered at a lower cost, with less manpower than using larger towed systems. PDF Click here to download PDF Date Submitted 04 Jan 2012 Category Marine Equipment - General Profiling Systems Survey Equipment Winches & Accessories

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Title Norwegian Hydrographic Service Select the UnderwaySV for MS Hydrograf Description The Norwegian Hydrographic Service (NHS) conducted the first ever multibeam survey using the revolutionary new UnderwaySV sound velocity profiler to provide critical sound speed data in early 2011. The partnership of the Oceanscience Group’s underway deployment system developed for the UnderwayCTD, and the innovative Valeport “free-fall” RapidSV probe has generated the first compact and affordable, high-quality underway sound speed profiler. NHS surveyors have reported several benefits from their new profiling capability; better SV data, more efficient surveys, and a happier crew. PDF Click here to download PDF Date Submitted 04 Jan 2012 Category Marine Equipment - General Profiling Systems Survey Equipment Winches & Accessories

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Title UnderwayCTD Used on the Stratus Ocean Reference Station / VOCALS Cruises 2007-2010 Description As some of the first oceanographers to use the Oceanscience UnderwayCTD (UCTD) profiler, researchers at Woods Hole Oceanographic Institution (WHOI) have been able to gather hundreds of CTD casts while in transit and during dedicated UCTD transects during the Stratus and VOCALS cruises in 2007-2010. The cumulative number of underway casts now exceeds 1,050. The WHOI experience has been crucial in developing the latest Series II UCTD, with feedback from three cruises used to drive design and operating procedure improvements. A recent WHOI investment in two upgraded Series II UCTD systems for future cruises, including the next Stratus cruise in 2011, will be rewarded by faster and deeper profiling capabilities. PDF Click here to download PDF Date Submitted 04 Jan 2012 Category Instruments / Instrumentation Marine Equipment - General Profiling Systems Survey Equipment Winches & Accessories